The raw Miscanthus x giganteus was harvested in
spring 2008 from Courcelle-Chaussy (France). The airdried
miscanthus was milled to a particle size of 1-3
mm using a Wiley mill. The untreated feedstock
contained 25% Klason lignin, 37% cellulose and 36%
hemicellulose. EPFB was collected from oil palm
cultivation in the Tali Air Estate (Sime Darby), Bagan
Serai, Perak, Malaysia. It was washed rigorously with
water and dried in the sun before it was sent by air
mail to France. Total polyphenol content of EFB was
gravimetrically determined as Klason lignin (32.2%)
and as soluble lignins (2.6%) by UV quantification.
The raw material also contained 42.6% glucans and
1.2% ash. The pomace samples corresponded to
mixtures of by-products of the winemaking process of
red grape variety (Vitis vinifera), growing in the southeast
of France and were provided by a French distillery.
The air-dried grape pomace was composed by grape
skin, seeds and stalks manually separated. It was stored
at room temperature during the course of this study.
All chemical reagents used in this study were
purchased